7016 CD/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
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7016 CD/P4AQBCA Bearing Product Overview & Core Advantages
The 7016 CD/P4AQBCA is a precision quadruplex matched angular contact ball bearing designed for applications demanding extreme rigidity and accuracy. This P4A tolerance class bearing features a back-to-back (QBC) arrangement of four bearings, enabling it to withstand significant combined loads (radial and axial) from multiple directions while maintaining exceptional operational stability. Its extra light preload (Class A) minimizes deflection under load, making it ideal for high-precision, high-rigidity systems. The phenolic cage and optimized internal geometry contribute to superior high-speed performance.
7016 CD/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
- 7016: Basic series designation, indicating a medium-duty angular contact bearing with 80mm bore and 125mm OD.
- C: Denotes a 15° contact angle, optimized for high-speed applications with combined loads.
- D: Indicates the bearing is supplied with a pre-set axial internal clearance (preload).
- P4A: Specifies an ultra-precision tolerance class exceeding ABEC 7 standards, ensuring minimal runout and vibration.
- QBC: Signifies a Quadruplex Back-to-Back matched set. This arrangement provides maximum rigidity and moment load capacity.
- A: Designates Extra Light Preload (Class A), reducing friction and heat generation at high speeds.
7016 CD/P4AQBCA Bearing Structural Features & Performance Benefits
Unmatched Rigidity & Load Capacity: The quadruplex back-to-back (QBC) arrangement creates a highly rigid bearing system capable of handling heavy combined radial and axial loads, as well as moment loads. This configuration significantly increases system stability and positioning accuracy.
Precision Performance: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, which is critical for maintaining precision in demanding applications. The consistent bearing dimensions and tight tolerances guarantee reliable performance.
Optimized High-Speed Operation: The phenolic resin cage offers excellent strength-to-weight ratio and operates smoothly at high speeds. Combined with the 15° contact angle and light preload, it enables a high limiting speed of 28,000 rpm.
Superior Material Construction: Manufactured from high-grade chrome steel for both rings and balls, providing excellent wear resistance and long service life under demanding conditions.
7016 CD/P4AQBCA Bearing Typical Application Areas
- High-Precision Machine Tool Spindles: For grinding, milling, and turning centers requiring extreme accuracy and rigidity.
- High-Speed Machining Centers: Where superior dynamic stability and thermal management are critical.
- Precision Gearboxes: In applications demanding minimal deflection and high positional accuracy.
- Industrial Robotics: For robot arm joints and precision positioning systems.
- Aerospace Actuation Systems: In flight control mechanisms and other critical aerospace components.
